Automobile hydraulic ESC novel material electromagnetic valve

Abstract

An automobile hydraulic ESC novel material electromagnetic valve comprises an electromagnetic valve body, the electromagnetic valve body comprises a shell, a steel column base, a static iron core and a movable iron core, an iron core connecting groove is formed in the shell, one end of the static iron core extends into the iron core connecting groove to be in interference fit with the shell, and the movable iron core is arranged at the end, away from the shell, of the static iron core. According to the design, the electromagnetic valve is a normally closed valve, the static iron core is made of electrical pure iron DT4C, the movable iron core is machined through the powder metallurgy technology, the response time of the normally closed valve can be effectively prolonged, response current is reduced, and the overall electrical performance of the electromagnetic valve is improved; the shell is made of non-magnetic stainless steel (MSC-4), the electrical performance of the electromagnetic valve can be further improved, the shell and the normally-open valve can share one die, cost waste is reduced, and the heat dissipation through holes with the diameter being 0.8 are additionally arranged, so that the welding qualification rate can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valves, in particular to a solenoid valve made of new materials for automobile hydraulic ESC. Background Art

[0002] At present, most solenoid valves are used in the actuator (HCU) of the automotive electronic stability control system (ESC). The actual state of the vehicle body is measured by the vehicle body sensor, and the solenoid valve is automatically started and closed. The HCU automatically pressurizes and depressurizes the wheel cylinder to increase and decrease the braking pressure of the wheel cylinder to ensure the lateral stability of the vehicle. However, most of the existing solenoid valve static iron cores are machined / cold headed, with a slow response time. Most of the normally open valves and normally closed valves are divided into two molds, which take up a large space in later use, have a high cost, and do not have good thermal conductivity. Summary of the invention

[0003] In view of this, the utility model provides an automobile hydraulic ESC new material solenoid valve.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A new material solenoid valve for automotive hydraulic ESC comprises a solenoid valve body, wherein the solenoid valve body comprises a shell, a steel column seat, a static iron core and a moving iron core, wherein an iron core connecting groove is provided on the shell, one end of the static iron core extends into the iron core connecting groove and is interference fit with the shell, and the moving iron core is arranged at an end of the static iron core away from the shell, and one end of the moving iron core extends into the iron core connecting groove to abut against the static iron core.

[0006] Preferably, the static iron core has a top inclined surface, and the shell is provided with a corresponding shell inclined portion corresponding to the top inclined surface, and the shell inclined portion has a guiding function for the static iron core in the horizontal direction.

[0007] Preferably, a shell discharge hole is provided at one end of the shell close to the top inclined surface, the shell discharge holes are symmetrically arranged on both sides of the shell, and the diameter of the shell discharge hole is 0.8.

[0008] Preferably, a seat body connecting groove is opened on the steel column seat, one end of the moving iron core extends into the seat body connecting groove and is connected to the steel column seat, and the two ends of the moving iron core are respectively connected to the outer shell and the steel column seat, and the outer shell and the steel column seat are interference fit.

[0009] Preferably, the static iron core is made of electrical pure iron DT4C.

[0010] Preferably, the shell is made of MSC-4.

[0011] Preferably, the material of the moving iron core is FYX3001CH.

[0012] The beneficial effect of the utility model is that: in the present design, the present design is a normally closed valve, the static iron core is made of electrical pure iron DT4C and the moving iron core is processed by powder metallurgy process, which can effectively improve the response time of the normally closed valve, reduce the response current, and improve the overall electrical performance of the solenoid valve, and the shell material is non-magnetic stainless steel (MSC-4) to further improve the electrical performance of the solenoid valve, and the shell and the normally open valve can share a mold, which reduces the waste of cost, and the addition of a heat dissipation through hole with a diameter of 0.8 can effectively ensure the welding qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Attached Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Attached Figure 2 It is an exploded schematic diagram of the utility model;

[0016] Attached Figure 3 For attachment Figure 1 Enlarged view of point A.

[0017] Reference numerals:

[0018] 1. Solenoid valve body, 2. Shell, 3. Steel column seat, 4. Static iron core, 5. Moving iron core, 6. Iron core connecting groove, 7. Top inclined surface, 8. Shell inclined part, 9. Shell discharge hole, 10. Seat body connecting groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model will be further described below in conjunction with the accompanying drawings of the specification.

[0021] The utility model provides the following technical solutions:

[0022] As attached Figure 1-3As shown, the utility model discloses a new material solenoid valve for automobile hydraulic ESC, comprising a solenoid valve body 1, the solenoid valve body 1 comprising a shell 2, a steel column seat 3, a static iron core 4 and a moving iron core 5, an iron core connecting groove 6 is provided on the shell 2, one end of the static iron core 4 extends into the iron core connecting groove 6 and is interference fit with the shell 2, the moving iron core 5 is arranged at the end of the static iron core 4 away from the shell 2, and one end of the moving iron core 5 extends into the iron core connecting groove 6 to resist the static iron core 4. In the present design, the present design is a normally closed valve, the static iron core 4 is made of electrical pure iron DT4C and the moving iron core 5 is processed by powder metallurgy process, which can effectively improve the response time of the normally closed valve, reduce the response current, and improve the overall electrical performance of the solenoid valve, and the shell 2 is made of non-magnetic stainless steel (MSC-4) to further improve the electrical performance of the solenoid valve, and the shell 2 and the normally open valve can share a mold, which reduces the waste of cost, and increases the heat dissipation through hole with a diameter of 0.8 to effectively ensure the welding qualification rate.

[0023] Furthermore, the static iron core 4 has a top inclined surface 7, and the shell 2 is provided with a matching shell inclined portion 8 corresponding to the top inclined surface 7. The shell inclined portion 8 guides the static iron core 4 in the horizontal direction. In the present design, the top of the static iron core 4 is a sloped structure which can reduce the assembly time with the shell 2 and realize quick alignment.

[0024] Furthermore, a shell discharge hole 9 is opened at one end of the shell 2 close to the top inclined surface 7, and the shell discharge holes 9 are symmetrically arranged on both sides of the shell 2, and the diameter of the shell discharge hole 9 is 0.8. In the present design, two holes with a diameter of 0.8 are added to the side of the shell 2, which are mainly used to discharge the gas generated by the welding of the shell 2 and the static iron core 4, thereby reducing the welding perforation rate and improving the product qualification rate.

[0025] Furthermore, a seat body connecting groove 10 is opened on the steel column seat 3, one end of the moving iron core 5 extends into the seat body connecting groove 10 and is connected to the steel column seat 3, and the two ends of the moving iron core 5 are respectively connected to the outer shell 2 and the steel column seat 3, and the outer shell 2 and the steel column seat 3 are interference fit. In this design, the interference fit connection structure between the outer shell 2 and the steel column seat 3 is simple, so that the impact resistance of the solenoid valve is good.

[0026] Furthermore, the static iron core 4 is made of electrical pure iron DT4C. In this design, the static iron core 4 is made of electrical pure iron DT4C, which can increase the response time of the normally closed valve, reduce the response current, and improve the overall electrical performance of the solenoid valve.

[0027] Furthermore, the shell 2 is made of MSC-4. In the present design, the shell 2 is made of non-magnetic stainless steel (MSC-4), which has excellent non-magnetic properties and can improve the electrical performance of the solenoid valve.

[0028] Furthermore, the material of the moving iron core 5 is FYX3001CH. In the present design, the moving iron core 5 is processed by powder metallurgy process and is made of FYX3001CH, which can improve the response time of the normally closed valve, reduce the response current, and improve the overall electrical performance of the solenoid valve.

[0029] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A new material solenoid valve for automobile hydraulic ESC, comprising a solenoid valve body, characterized in that: The solenoid valve body includes an outer shell, a steel column seat, a static iron core and a moving iron core. An iron core connecting groove is provided on the outer shell, one end of the static iron core extends into the iron core connecting groove and is interference fit with the outer shell, the moving iron core is arranged at the end of the static iron core away from the outer shell, and one end of the moving iron core extends into the iron core connecting groove to resist the static iron core, the static iron core has a top inclined surface, and the outer shell is provided with a corresponding outer shell inclined portion corresponding to the top inclined surface, the outer shell inclined portion has a guiding function for the horizontal direction of the static iron core, and an outer shell discharge hole is provided at one end of the outer shell close to the top inclined surface, and the outer shell discharge holes are symmetrically arranged on both sides of the outer shell.

2. The automotive hydraulic ESC new material solenoid valve according to claim 1 is characterized by: The steel column seat is provided with a seat body connecting groove, one end of the moving iron core extends into the seat body connecting groove and is connected to the steel column seat, and the two ends of the moving iron core are respectively connected to the outer shell and the steel column seat, and the outer shell and the steel column seat are interference fit.

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